Flights St. Louis → Toronto
STL → YYZ
Route overview
The flight route from St. Louis to Toronto connects two major cities, offering travelers convenient access between the Midwest and Canada's largest province. With the destination airport serving over 35 million passengers annually, this route is part of a highly trafficked network that supports extensive travel and commerce.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The St. Louis (STL) → Toronto (YYZ) route is operated by Air Canada, United Airlines. FlightGuard's average computed risk is 11.8/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Toronto the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from St. Louis the average ATFM delay is 2.0 minutes.
Heading to Toronto: what to expect in this direction
Flying from St. Louis (STL) to Toronto (YYZ) heads north-east for about 1,051 km, a flight time of roughly 1h 44m.
Air-traffic congestion: departing St. Louis the average ATFM delay is 2.0 min (atfm); arriving into Toronto it is 2.0 min (atfm).
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating STL-YYZ
Airports
Frequently asked questions about STL-YYZ
Route-specific punctuality data isn't available yet. Check your flight on FlightGuard for a real-time analysis.
The cancellation rate varies by airline and season. Check your flight risk for an up-to-date estimate.
The route is operated by 2 airlines: Air Canada, United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Toronto, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
